Mechanisms of removal of three widespread pharmaceuticals by two clay materials

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• 作者：A.V. Dordio^a ; ^b ; ^{avbd@uevora.pt} ; S. Miranda^a ; J.P. Prates Ramalho^a ; ^c ; ^d ; A.J. Palace Carvalho^a ; ^c ; ^d
• 关键词：Adsorption ; Clay materials ; Periodic DFT ; LECA ; Pharmaceuticals ; Exfoliated vermiculite
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：323
• 期：part_PA
• 页码：575-583
• 全文大小：1786 K
• 卷排序：323

文摘

LECA efficiently removes gemfibrozil, mefenamic acid and naproxen from water. Vermiculite has faster adsorption kinetics than LECA (non-stirring conditions). Gemfibrozil and mefenamic acid attain a partition equilibrium onto vermiculite. Adsorption of naproxen onto vermiculite follows a Langmuir isotherm. The three drugs all bind to vermiculite in a similar way through the surface’s Mg2+.